12656883813892 has 48 divisors (see below), whose sum is σ = 23325023055600. Its totient is φ = 6002745795072.

The previous prime is 12656883813883. The next prime is 12656883813943. The reversal of 12656883813892 is 29831838865621.

It can be written as a sum of positive squares in 8 ways, for example, as 1732761526336 + 10924122287556 = 1316344^2 + 3305166^2 .

It is a super-2 number, since 2×12656883813892² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3907267 + ... + 6370282.

It is an arithmetic number, because the mean of its divisors is an integer number (485937980325).

Almost surely, 2^{12656883813892} is an apocalyptic number.

It is an amenable number.

12656883813892 is a deficient number, since it is larger than the sum of its proper divisors (10668139241708).

12656883813892 is a wasteful number, since it uses less digits than its factorization.

12656883813892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277800 (or 10277798 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 70.

The spelling of 12656883813892 in words is "twelve trillion, six hundred fifty-six billion, eight hundred eighty-three million, eight hundred thirteen thousand, eight hundred ninety-two".